T aking low-dose aspirin-often recom- mended to protect your heart-may also reduce your odds of colon cancer. A team of researchers whod previously shown a link between high-dose aspirin and lower colon-cancer risk looked at fve trials totaling 16,488 participants taking lower doses, since long-term high-dose aspirin usage can have adverse bleeding effects. Over nearly 20 years of followup, the new analysis found that people assigned to low- dose aspirin regimens for six years were at one-quarter lower risk of colon cancer and one-third less likely to die of the disease.
A lpha-carotene, the often-overlooked cousin of more familiar beta-caro- tene, may help you live longer-and further explain the health benefts of eating vegetables and fruits. Researchers at the CDC, studying data on more than 15,000 adults from a national nutrition survey, report that people with the highest blood levels of alpha-carotene were 39% less likely to die from all causes over almost 14 years.
Can foods, beverages or dietary supplements really increase your mental energy? Scientists at the Life Sciences Research Organization (LSRO) recently reported the results of a review of the scientific evidence for such claims regarding ginkgo biloba, ginseng, glucose and omega-3 polyunsaturated fatty acids. They defined mental energy as consisting of mood (transient feelings about the presence of fatigue or energy), motivation (determination and enthusiasm) and cognition (sustained attention and vigilance)
The good news from a new pooled analysis of 57 studies is that, despite some red flags from previous research, vitamin E supplements are safe and dont increase the risk of death. But neither do the once-highly touted supplements help you live longer, the review reports, despite hopes their antioxidant effects might fight chronic disease. Calling their meta-analysis the largest and most inclusive to date, scientists concluded in Current Aging Science that vitamin E supplementation cannot be endorsed as a means of reducing mortality
Plus new clues to the disease from ibuprofen and vitamin D. Three new studies are shedding light on the mysteries of Parkinsons disease, one of the most common nervous system disorders with aging. A neurodegenerative brain disorder that leads to tremors and difficulty with movement and coordination, Parkinsons most often develops after age 50; 50,000-60,000 new US cases are diagnosed annually
If youre 50 or older, Uncle Sam says yes. Heres why and how best to get it. When the latest federal Dietary Guidelines for Americans were released earlier this year with the recommendation that people age 50 and older should get extra vitamin B12 through fortified foods or supplements, one expert commented, Its not very difficult to anticipate the sudden spate of fortified with vitamin B12 as recommended in the 2010 Dietary Guidelines messaging that will populate the fronts of boxes and bags. Before the hype hits the grocery stores
A new American Cancer Society study concludes that theres no evidence folic acid from fortified foods or supplements increases the risk of colorectal cancer. Earlier research, including a 2007 Tufts study